mxnet/mxnet/python/mxnet/../../lib/libmxnet.so：未定义符号：cblas_dd

Question

我尝试按如下方式安装mxnet： 操作系统： RHEL 6.9（2.6.32-696.el6.x86_64） 编译程序： gcc（gcc）5.3.0也尝试了6.2.0

A.OpenBLAS内部版本

 1. git clone https://github.com/xianyi/OpenBLAS.git
 2. cd OpenBLAS
 3. make DYNAMIC_ARCH=1 NO_AVX2=1
 4. make PREFIX=~/test/OpenBLAS-1.0 install

B.mxnet安装

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然后将PYTHONPATH导出为export

`PYTHONPATH=~/test/mxnet/python/`

在交互式模式下运行python之后，我得到以下错误：

[c244728_lx@brainiac-login-0001 lib]$ python --version
Python 3.5.1
[c244728_lx@brainiac-login-0001 lib]$ python
Python 3.5.1 (default, Mar  2 2016, 08:58:17)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-11)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import mxnet
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/c244728_lx/test/mxnet/python/mxnet/__init__.py", line 25, in <module>
    from .base import MXNetError
  File "/home/c244728_lx/test/mxnet/python/mxnet/base.py", line 86, in <module>
    _LIB = _load_lib()
  File "/home/c244728_lx/test/mxnet/python/mxnet/base.py", line 78, in _load_lib
    lib = ctypes.CDLL(lib_path[0], ctypes.RTLD_LOCAL)
  File "/lrlhps/apps/python/python-3.5.1/lib/python3.5/ctypes/__init__.py", line 347, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: /home/c244728_lx/test/mxnet/python/mxnet/../../lib/libmxnet.so: undefined symbol: cblas_ddot
>>>

如需更多说明，请遵循： github issue

Answer 1

指定

make -j8 ADD_CFLAGS="-I/home_dir/OpenBLAS_build/include" ADD_LDFLAGS="-L/home_dir/OpenBLAS_build/lib -lopenblas"

和导出路径

LD_LIBRARY_PATH=/OpenBLAS_build/lib:$LD_LIBRARY_PATH

解决了这个问题。在